error updating Air

Thank you for posting the logs.  Unfortunately, the msi log you posted was for the Microsoft Fixit application, not the AIR installer.   Microsoft has released a utility that can help resolve installation problems.  Would you mind giving this a try and let us know how it works for you?  When running the Fix it, go through the uninstall process and try to remove Adobe AIR from your system.  Once finished, download the latest version of AIR and install again.

Microsoft Install and Uninstall Fix It

If you still encounter problems, we'll need to review the AIR MSI log to investigate further.

Thanks,

Chris